Petbank feeder - completely new

New unopened fish feeder that I received and already have :) It's great, but I won't use another one.

Manufacturer's description:
Precise amount of feed: Unlike regular fish feeders that have only one chamber, the updated Petbank automatic fish feeder has a total of 16 compartments, allowing for 15 separate portions and conveniently storing different types of feed. Each compartment holds up to 2 g, ensuring high dosing accuracy. Note: Please do not store fish feed in the dispensing chamber.

Two installation methods: The Petbank aquarium feeder offers two different installation methods to accommodate various types of aquariums. You can attach it to the aquarium glass using an adjustable clamp or secure it to the aquarium lid with a suction cup. Both methods are easy to operate, so you can choose the one that best suits your needs.

Moisture-resistant design: Unlike other automatic feeders with a single opening that is constantly open, which can easily cause the feed to get wet or jam, the Petbank automatic fish feeder is fully sealed against moisture and its opening automatically closes after each feeding. This thoughtful design effectively keeps the fish feed dry. The Petbank feeder is suitable for most types of feed, such as granules, pellets, powders, and small strips.

Customizable feeding time: With an intelligent LCD display and timer function, our automatic fish feeder can be programmed for up to 3 feedings a day, with a maximum of 3 feeding compartments. You can also set feeding for any time during the day and have it dispense once, twice, three, or four times a day. If you want to enjoy the fun of feeding, you can also choose manual feeding.

USB charging: The Petbank timer feeder is equipped with a built-in 700 mAh battery that fully charges in 3 hours and lasts for 1 to 2 months. (A type C charging cable is included in the package).